JPH07220435A - Cassette adapter - Google Patents

Abstract

PURPOSE:To obtain a cassette adapter which can avoid the interference of a guide roller and the lid of a cassette at the time of tape loading operation by adding sidle structure thereto in the cassette adapter containing a small-size cassette so that a current cassette and a smaller cassette than the current cassette can be installed into a mechanical deck with compatibility. CONSTITUTION:When a cassette adapter 1 containing a cassette 7 is installed into a mechanical deck, the lid 16 of the cassette 7 is largely opened by an operating can member 24 provided in the internal surface of the lid 4 of the cassette adapter 1 through a hook member 23 provided in the operating member 21 of the upper lid 17 of the cassette adapter 1. The lid 16 is located in the position in which the interference of the lid 16 and the mouth part area of the cassette adapter is avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette adapter for accommodating a small cassette so that an existing cassette and a small cassette smaller than this cassette can be interchangeably mounted in a recording / reproducing apparatus.

[0002]

2. Description of the Related Art Conventionally, when a cassette is accommodated in a cassette adapter of this type, the lid of the cassette is opened in a horizontal state and at the same time, the tape in the cassette is swung by a guide arm of the cassette adapter to cause a mouse portion of the cassette adapter. It is designed to be pulled out forward. And
The cassette adapter accommodating the cassette is mounted on the recording / reproducing apparatus, and the tape is wound around the drum and set in the loading state. However, in the cassette accommodated in the cassette adapter, since the lid that is opened horizontally is located inside the mouse of the cassette adapter, the lid comes into contact with a guide roller or the like that loads the tape onto the drum, The loading operation becomes impossible.

Therefore, in the past, as a measure for solving such a problem, the guide arm of the cassette adapter closes the lid of the cassette after the tape is pulled out to avoid contact between the guide roller and the lid. It was

[0004]

However, in the method as described above, when the cassette is taken out from the cassette adapter, the lid of the cassette is opened again to wind the tape, and after the winding of the tape is completed, the lid is closed. Action is required. For this reason, there has been a problem in that the lid adapter needs to be opened or closed each time each operation is performed, so that the cassette adapter is mechanically complicated.

The present invention has been made to solve the above-mentioned problems, and by adding a simple structure, it is possible to eliminate the contact between the guide roller and the lid of the cassette during the tape loading operation. The purpose is to obtain a cassette adapter.

[0006]

In order to achieve the above object, the cassette adapter according to the present invention has a small size so that an existing cassette and a small cassette smaller than this cassette can be interchangeably mounted in a recording / reproducing apparatus. In a cassette adapter that accommodates a cassette, an adapter-side lid 4 that opens and closes the mouse portion 3 in the cassette adapter 1,
The adapter-side lid 4 is provided with an operation cam member 24, and the operation cam is interlocked with the opening operation of the adapter-side lid 4 of the cassette adapter 1 at the time of a mounting operation in which the cassette adapter containing the small cassette 7 is mounted in the recording / reproducing apparatus. Member 2
4, the lid 16 of the small cassette 7 is opened to a position retracted from the mouse area 3 of the cassette adapter.

Further, in the cassette adapter according to the preferred embodiment of the present invention, when the small cassette is housed in the cassette adapter, the tape of the small cassette 7 is rotated by the opening operation of the lid 4 on the adapter side and the guide arms 27 and 28 are rotated. The adapter is pulled out to the front of the mouse portion 3.

Further, in the cassette adapter according to the preferred embodiment of the present invention, the operation cam member 24 is formed on the inner side surface of the adapter side lid 4.

Further, in the cassette adapter according to the preferred embodiment of the present invention, the operation cam member 24 opens the lid 16 of the cassette via the actuating member 21 to a position retracted from the mouse portion area 3 of the cassette adapter 1. It is a thing.

Further, in the cassette adapter according to the preferred embodiment of the present invention, the operating member 21 is constituted by a part of the upper lid 17 of the cassette adapter 1.

Further, the cassette adapter according to the preferred embodiment of the present invention is such that the cassette adapter 1 is compatible with an 8 mm video cassette.

[0012]

The cassette adapter of the present invention constructed as described above is a cassette adapter 1 containing a small cassette 7.
Is attached to the recording / reproducing apparatus, the adapter-side lid 4 of the cassette adapter begins to open, and the opening operation of the adapter-side lid 4 pushes the lid 16 of the small cassette 7 with the operation cam member 24 provided on the lid 4. It can be raised and released. As a result, the lid 16 of the small cassette can be retracted from the mouse portion area 3 of the cassette adapter 1, and the interference with the loading member of the recording / reproducing apparatus can be avoided.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cassette adapter according to the present invention will be described below with reference to the drawings by taking a small cassette adapter compatible with an 8 mm video cassette as an example.
FIG. 1 is a plan view of a mechanism portion of the cassette adapter of this example, showing a state in which a small cassette is housed, and FIG. 2 is a partially cutaway side view of the cassette adapter.

In both figures, the cassette adapter is generally designated by reference numeral 1. The outer shape of the housing 2 forming the cassette adapter 1 has the same shape as the outer shape of the 8 mm video cassette. The cassette adapter 1 has a mouse portion 3 on the front surface (the upper portion in FIG. 1), and the mouse portion 3 is a lid 4
Can be opened and closed by. That is, the lid 4 supports the shafts 5a and 5a provided on the left and right side plates 5 and 5 on the housing 2, and rotates about the shafts 5a and 5a as fulcrums.

The housing 2 of the cassette adapter 1 has a cassette housing portion 6 which is biased to one side, and the cassette housing portion 6 is provided.
The small cassette 7 is housed in the. The tape supply reel 8 of the small cassette 7 has a hub hole 8a, and this reel hub hole 8a corresponds to the bottom opening 2a of the housing 2 of the cassette adapter 1. Also, the tape winding side reel 9
Is rotatably supported by a shaft 7a provided at the bottom of the small cassette 7. The tape take-up reel 9 is rotationally driven by a drive gear 10 supported by the housing 2 of the cassette adapter 1 via transmission gear trains 11a, 11b, 11c and a limiter gear (not shown) of the tape take-up reel 9. The hub hole 10a provided on the bottom surface of the drive gear 10 corresponds to the bottom opening (not shown) of the housing 2 of the cassette adapter 1.

The mouse portion 13 is provided on the front surface of the small cassette 7.
The mouse portion 13 can be opened and closed by a lid 16 supported on the upper portion of the cassette housing 14 via bearing pins 15 and 15, and the lid 16 is supported by the bearing pins 15 and 15.
The mouse spring 13 is biased in a direction to close the mouth portion 13 by a coil spring (not shown) attached to the mouse.

On the other hand, the above-mentioned cassette housing portion 6 can be opened and closed by the upper lid 17 attached to the housing 2 of the cassette adapter 1. More specifically, the upper lid 17 is rotatably supported on the housing 2 by supporting portions 17a, 17a provided on both left and right end portions of the upper lid 17 by fulcrum shafts 18, 18. A coil spring 19 is attached to one of the fulcrum shafts 18, and the spring force of the coil spring 19 urges the upper lid 17 in the opening direction.

A plate-shaped actuating member 21 is attached by a second fulcrum shaft 20 to the end of the upper lid 17 on the fulcrum shaft 18 side on which the coil spring 19 is mounted so as to be located above the bearing 17a. A second coil spring 22 is attached to the second fulcrum shaft 20, and the spring force of the coil spring 22 urges the operating member 21 to press against the surface of the support portion 17a, so that the operating member 21 moves to the upper lid 17. It is designed to extend on a plane. Further, the operating member 21 is provided with a hook member 23 so as to project inward. The hook member 23 has a shape in which the end on the fulcrum shaft 20 side is inclined outward.

An operation cam member 24 is attached to the rear surface of the side plate 5 of the lid 4 of the cassette adapter 1 near the operation member 21.

Next, a tape pulling-out mechanism and a winding-up mechanism of the small cassette 7 by the cassette adapter 1 thus constructed will be described. The tape pull-out mechanism and the tape winding mechanism are not essential to the present invention, and will be briefly described.

First, the tape pull-out mechanism will be described with reference to FIG. Guide rollers 25, 26 are provided at the tips of the small cassette 7 at positions corresponding to the mouse portion 13, respectively.
A tape supply side draw-out arm 27 and a tape take-up side draw-out arm 28 are arranged. The tape supply side pull-out arm 27 is supported by a fulcrum portion 29.
Link 3 integrally formed with the arm 27 extending from 9
One end of the interlocking arm 31 is connected via 0.
An operating piece 32 is formed at the other end of the interlocking arm 31, and a guide hole 32a formed in the operating piece 32 is engaged with an operating shaft 33 supported by the housing 2 of the cassette adapter 1.

Further, an end portion of the tape winding-side drawing arm 28 is supported on the actuating shaft 33, and the vicinity of the end portion of the arm 28 is engaged with a shaft pin 34 provided on the actuating piece 32. . Further, the operating piece 32 has one operating pin 35.
Is erected, and the operating pin 35 is engaged with a long hole 37a of an operating link 37 fixed to an operating gear 36. The operating gear 36 includes the reduction gear groups 38a, 38b, 38c.
It is meshed with the worm 40 which is the output shaft of the drive motor 39 via the. Reference numeral 41 is a battery for driving the drive motor 39 in forward and reverse directions.

The tape pull-out mechanism thus constructed is
When the small cassette 7 is housed in the cassette housing portion 6 of the cassette adapter 1 (at this time, the lid 12 of the small cassette 7 is opened in the horizontal state, and this operation will be described later), it is not shown in conjunction with this. The switch is operated to drive the drive motor 39 in the normal direction to drive the reduction gear groups 38a, 38.
When the actuating gear 36 rotates counterclockwise via b and 38c, the actuating piece 32 is actuated through the actuating link 37 and actuating pin 35 so that the guide hole 32a of the actuating piece 32 moves along the actuating shaft 33 along with the interlocking arm 31 in the solid line position. To move to the broken line position.
As a result, the tape supply side pull-out arm 27 becomes
9 is pivoted to a broken line position, and the tape winding-side pull-out arm 28 is pivotally rotated to a broken line position around the operating shaft 33, so that the tape of the small cassette 7 is placed in front of the mouse portion 3 of the cassette adapter 1. Can be pulled out to the side.

Next, the tape winding mechanism will be described with reference to FIG. The transmission gear group 4 is included in the drive gear 10 described above.
It engages with the worm 40 of the drive motor 39 from the reduction gear 38c of the tape pull-out mechanism described above via 2a and 42b. Further, the clutch mechanism of the transmission gear 42a operates with respect to the drive gear 10 to engage and disengage.

The tape winding mechanism constructed as described above performs an operation of returning the tape supply side draw-out arm 27 and the tape take-up side draw-out arm 28 to the pre-rotation position and an operation of winding the loose tape. In other words, by driving the drive motor 39 in the reverse direction, the tape supply side pull-out arm 27 and the tape take-up side pull-out arm 28 can be operated in reverse via the tape pull-out mechanism described above. At the same time as this operation, the transmission gear groups 42a, 42a
2b, drive gear 10, transmission gear trains 11a, 11b, 11
The slack tape can be wound around the tape winding reel 9 by rotating the limiter gear via c.

Now, a series of operations of the cassette adapter according to the present invention will be described with reference to FIGS. First, the operation of accommodating the small cassette 7 in the cassette accommodating portion 6 of the cassette adapter 1 will be described.

First, when the upper lid 17 is opened vertically and the small cassette 7 is started to be accommodated in the cassette accommodating portion 6 from above, the lower end of the lid 16 of the small cassette 7 is supported by the upper lid 17 as shown in FIG. The hook member 23 of the actuated member 21 thus engaged is engaged, and as shown in FIG. 6, the lid 16 starts to open about the second fulcrum shaft 20. Small cassette 7
Is completely accommodated in the cassette accommodating portion 6, the upper lid 1
When the lid 7 is closed, the lid 16 is pulled up by the hook member 23 of the actuating member 21 as shown in FIG.
Is opened to the horizontal state.

That is, when the small cassette 7 is accommodated in the cassette accommodating portion 6 and the lid 16 is opened in the horizontal position and the upper lid 17 is closed, the motor 39 is driven as a switching operation to operate the tape pull-out mechanism. The tape of the cassette 7 can be pulled out to the mouse portion 3 of the cassette adapter 1 by the turning operation of the tape feeding side pulling arm 27 and the tape winding side pulling arm 28.

Next, the mounting operation of the cassette adapter 1 in the mechanical deck of the recording / reproducing apparatus will be described with reference to FIGS.

When the cassette adapter 1 in which the cassette 7 is accommodated is accommodated in the mechanical deck (not shown), the hub hole 8a of the tape supply side reel 8 and the hub hole 10 of the drive gear 10 are accommodated.
When the reel drive shaft (not shown) of the mechanical deck is attached to each a, the lid 4 of the cassette adapter 1 comes into contact with the projecting member on the mechanical deck side, and the lid 4 starts to be opened. With the opening operation of the lid 4, the operation cam member 24 provided on the back surface of the side plate 5 of the lid 4 is attached to the upper lid 1.
7 is contacted with the back surface of the operating member 21 which is attached extending from 7 (see FIG. 7), and the operating member 21 is pushed up. Therefore, the actuating member 21 rotates upward with the fulcrum shaft 20 with the upper lid 17 as the center of rotation against the spring force of the second coil spring 22. By this rotating operation of the operating member 21, the lid 16 of the cassette 7 is further opened from the horizontal state via the hook member 23 provided on the operating member 21. That is, when the lid 4 of the cassette adapter 1 is fully opened, the lid 16 of the small cassette 7 is opened to an angle of about 45 °, and the lid 16 is retracted to a position where it does not interfere with the area of the mouse portion 3 of the cassette adapter 1. be able to.

Thus, in the opened state of the lid 4 of the cassette adapter 1 and the lid 16 of the cassette 7 shown in FIG. 8, the guide arm of the tape loading mechanism on the mechanical deck side moves to the mouse portion 3 of the cassette adapter to transfer the tape to the drum. The loading operation for winding can be performed.

When the unrotating operation is performed, the tape which is in a loosened state outside the cassette adapter 1 is taken up by driving the tape take-up mechanism of the cassette adapter 1. At this time, the drive gear 10 to the transmission gear 42a
Is disengaged by the action of the clutch mechanism.

When the cassette adapter 1 is ejected from the mechanical deck, the lid 16 of the cassette adapter 1 is closed by the restoring force of a spring (not shown). It returns to the horizontal state again due to the spring force.

Further, the motor 39 is reversely driven in association with the operation of opening the upper lid 17 of the cassette adapter 1, and the tape feeding side pulling arm 27 and the tape winding side pulling arm are driven by the reverse operation of the tape pulling mechanism. 28
Is returned to its original position, and the slackened tape is wound into the small cassette 7 by driving the tape winding mechanism. Further, the lid 16 of the cassette 7 is closed by the opening operation of the upper lid 17, and then the small cassette 7 can be taken out from the housing portion 6 of the cassette adapter 1.

As described above, in the cassette adapter according to the present invention, when the cassette adapter 1 accommodating the cassette 7 is mounted on the mechanical deck, the lid 1 of the cassette 7 is
Since 6 can be retracted to a position where it does not interfere with the area of the mouse portion 3 of the cassette adapter 1, the guide arm on the mechanical deck side does not come into contact with the lid 16 during the tape loading operation, and the operation is smoothly performed. It has the advantage that it can be done.

Further, since the cassette 7 accommodated in the cassette adapter is always maintained in the open state, the lid is opened or closed one by one when the cassette adapter is mounted in the mechanical deck as in the conventional case. Such an operation is unnecessary, and thus the mechanism of the cassette adapter is simple in construction.

Since it is not necessary to process the lid 16 of the cassette 7 at all, the tape can be completely protected without exposing the tape at the cassette mouse portion.

The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention.

In the embodiment, the cassette adapter compatible with the 8 mm video cassette has been described as an example.
It is widely applicable to cassette adapters compatible with other existing tape cassettes.

[0040]

As described above, the cassette adapter according to the present invention is a cassette adapter for accommodating a small cassette so that the existing cassette and a small cassette smaller than this cassette can be mounted on the recording / reproducing apparatus with compatibility. In the cassette adapter, an adapter-side lid for opening and closing the mouse portion and an operation cam member for the adapter-side lid are provided, and the cassette adapter that accommodates the small cassette is attached to the recording / reproducing apparatus during the attaching operation. The operation cam member interlocks with the opening operation of the side lid to open the lid of the small cassette to the position retracted from the mouse area of the cassette adapter, so that the guide arm of the recording / playback device may come into contact with the lid. There is an effect that the operation can be performed smoothly without

Further, since the lid of the cassette accommodated in the cassette adapter may be left open, the mechanism of the cassette adapter is simple in construction and the lid of the cassette does not need to be processed. There is also an effect that the tape can be completely protected without exposing the tape in the mouse part.

[Brief description of drawings]

FIG. 1 is a plan view of a mechanism portion of a cassette adapter of this example.

FIG. 2 is a side sectional view of the cassette adapter of this example.

FIG. 3 is a plan view of a cassette adapter including a tape pull-out mechanism.

FIG. 4 is a plan view of a cassette adapter including a tape winding mechanism.

FIG. 5 is a partial cross-sectional view of a small cassette before being accommodated in a cassette adapter.

FIG. 6 is a partial cross-sectional view of a small cassette accommodated in a cassette adapter.

FIG. 7 is a partial cross-sectional view of the cassette adapter being installed in the mechanical deck.

FIG. 8 is a partial cross-sectional view showing a state where the cassette adapter is mounted in the mechanical deck.

[Explanation of symbols]

 1 Cassette Adapter 2 Housing 3 Adapter Mouse Part 4 Adapter Lid 6 Cassette Housing 7 Small Cassette 8 Tape Supply Side Reel 9 Tape Winding Side Reel 10 Drive Gears 11a, 11b, 11c Transmission Gear Row 13 Cassette Mouse Part 16 Cassette lid 17 Upper lid 18 Support shaft 19 Coil spring 20 Second support shaft 21 Actuating member 22 Second coil spring 23 Hook member 24 Operation cam member 27 Tape feeding side pulling arm 28 Tape winding side pulling arm

Claims (6)

[Claims] 1. A cassette adapter for accommodating an existing cassette and a small cassette smaller than this cassette so that they can be mounted in a recording / reproducing apparatus with compatibility, and the mouse part is opened / closed in the cassette adapter. An adapter-side lid and an operation cam member on the adapter-side lid, and the cassette adapter accommodating the small cassette is linked to the opening operation of the cassette-side adapter-side lid of the cassette adapter during the mounting operation. Then, the operation cam member is used to open the lid of the small cassette to a position retracted from the mouse area of the cassette adapter. 2. When the small cassette is accommodated in the cassette adapter, the tape of the small cassette is pulled out to the front of the mouse portion of the cassette adapter by the opening operation of the lid on the adapter side and the turning operation of the guide arm. The listed cassette adapter. 3. The operation cam member is formed on an inner side surface of the adapter-side lid.
The listed cassette adapter. 4. The cassette adapter according to claim 1, wherein the operation cam member opens the lid of the cassette to a position retracted from the mouse portion area of the cassette adapter through an actuating member. 5. The cassette adapter according to claim 4, wherein the actuating member is a part of an upper lid of the cassette adapter. 6. The cassette adapter is compatible with 8 mm video cassettes.
5. The cassette adapter according to any one of 5.